在luckfox pico plus上build ubuntu出现如下错误：
sudo ./build.sh
Cloning into '/home/newtonian/luckfox-pico/sysdrv/tools/board/ubuntu'...
fatal: unable to access 'https://github.com/luckfox-eng33/pico_ubuntu.git/': GnuTLS recv error (-110): The TLS connection was non-properly terminated.
fatal: clone of 'https://github.com/luckfox-eng33/pico_ubuntu.git' into submodule path '/home/newtonian/luckfox-pico/sysdrv/tools/board/ubuntu' failed
Failed to clone 'sysdrv/tools/board/ubuntu'. Retry scheduled
Cloning into '/home/newtonian/luckfox-pico/sysdrv/tools/board/ubuntu'...
fatal: unable to access 'https://github.com/luckfox-eng33/pico_ubuntu.git/': Failed to connect to github.com port 443 after 133558 ms: Connection timed out
fatal: clone of 'https://github.com/luckfox-eng33/pico_ubuntu.git' into submodule path '/home/newtonian/luckfox-pico/sysdrv/tools/board/ubuntu' failed
Failed to clone 'sysdrv/tools/board/ubuntu' a second time, aborting
[build.sh:error] Running main failed!
[build.sh:error] exit code 1 from line 1998:
应该是找不到ttps://github.com/luckfox-eng33/pico_ubuntu.git/，请问这个问题如何解决？
pico plus build ubuntu失败
您好，修改对应的板型mk文件中LF_SUBMODULES_BY改为gitee后再尝试进行编译。